CN202352176U

CN202352176U - Potable scientific experiment case

Info

Publication number: CN202352176U
Application number: CN2011203357135U
Authority: CN
Inventors: 魏隆成; 杨丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-28
Filing date: 2011-08-28
Publication date: 2012-07-25
Anticipated expiration: 2021-08-28

Abstract

Disclosed is a potable scientific experiment case, which can be packed into or attached to schoolbags. The potable scientific experiment case performs microminiaturization for instrument components and simplifies novel designs, various components can be stacked and contained in a detachable mode in a transparent containing case with a cover, the base area of the containing case is no more than 24cm*18cm, and the containing case is placed inside a matched special bag and convenient to carry along. The potable scientific experiment case enables students to complete 95% of junior high school physical experiments and 75% of senior high school physical experiments through diffident combinations of various components when the portable scientific experiment case is matched with necessary measuring instruments and articles which can be found easily in daily life and also enables the students to complete more than 100 extended extracurricular interesting experiments when matched extracurricular technical activity instruments are used. The portable scientific experiment case solves the problems that existing experiment instruments are inconvenient to carry along, experiments only can be performed in laboratories in groups, and time and places are limited, is convenient to perform inquiry learning and experiments for students at any time and any places in the classroom or out of class, and creates conditions for cultivation of initiative spirit, practical abilities and inquiry learning of students.

Description

A kind of portable scientific experiment box

Affiliated technical field

The utility model relates to a kind of realia, is a kind ofly to put into school bag or lie in the portable scientific experiment box on the school bag.

Background technology

The scientific experiment teaching of present middle and primary schools; How to divide into groups in the laboratory to carry out with special experimental apparatus; Because instrument inconvenience is carried and the restriction in laboratory open hour and place, is difficult to satisfy the needs of new curriculum about the students'creative spirit and the ability of practice and the inquiry learning that conducts a research.

Summary of the invention

In order more chances of starting to put into practice to be provided more when the learning science course for middle and elementary school student,, the Research Learning condition is provided for the student founds the innovative thinking environment.The utility model provides the scientific experiment box of a cover innovative design; It is characterized in that under the prerequisite that does not influence experiment effect, make basic experiment instrument and components and parts microminiaturized, and a tool is used more; Bulky instruments design is made into the parts that detachably stack; Collection is contained in the transparent plastic box, lies on the school bag or the threading school bag with supporting spectacle case, is convenient for carrying.The utility model lets the student as required on the classroom or extracurricular, accomplishes various experiments through the various combination of components and parts easily whenever and wherever possible, for the student carries out the inquiry Research Learning condition is provided.

The technical scheme that the utility model technical solution problem is taked is: the instrument components and parts are carried out microminiaturization, simplification innovative design, and minification changes structure; The connected mode of the terminal convolution of pyrocondensation thin dielectric layer micro wiring terminal and new-type terminal composition is adopted in Experiments of Electricity, and the parts bulky instrumentation becomes detachably to stack are used components and parts one tool more; Reduced volume; Minimizing quantity union is contained in floorage and is not more than square the having in the transparent packaging case of lid of 24cm * 18cm, and packaging case places in the supporting spectacle case, and spectacle case lies on the school bag or puts in the school bag; Reach and be easy to carry the purpose of taking at any time.

The beneficial effect of the utility model is; Articles for use such as the glass cylinder that is prone to find in gauging instrument, spirit lamp, beaker, test tube and the daily life of cooperation necessity, beverage bottle can let the student accomplish 95% junior physics lecture experiment and grouping experiment; 75% high school physics lecture experiment and grouping experiment; Make each student carry out inquiry experiment and Research Learning create conditions within the class period with the chance of the extracurricular operation that obtains to take action on one's own to experimentize and for the student whenever and wherever possible according to the needs of teaching; Small and exquisite experiment equipment helps cultivating the accuracy of student experimenting operation, improves the dexterous manipulative ability of student.Use the supporting extracurricular scientific and technological activities equipment of portable scientific experiment box simultaneously, can accomplish more than 100 the extracurricular interest experiment of extendability by guiding student, possess a fondness for science, study science, with the good scientific literacy and the quality of science from little cultivation student.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the packaging case of the utility model, and part experimental apparatus components and parts figure.

Fig. 2 is that balance crossbeam and lever are the lever element exemplary plot of one.

Fig. 3 is a solenoid, and Fig. 4 is the square frame coil, Fig. 5 solenoid and square frame coil applying examples.

Fig. 6 is small magnetic needle and applying examples figure, and Fig. 7 is galvanometer and needle.

Fig. 8 is thin plastic insulating layer micro wiring terminal and applying examples, and Fig. 9 is that electricity components and parts that new-type terminal is combined as a whole connect the exemplary plot that lead and joint are connected at terminal convolution circuit.

Figure 10 slide rheostat structural representation

Figure 11 is the tripod that detachably stacks, the weight beam structural representation of Figure 12 band activity mark.

1. lids among the figure, 2. packaging case body, 3. submarine model, 4. object deformation sink-float tester, 5. scale pan, 6. balance crossbeam and lever element; 7. balance rider, the 8. central edge of a knife, lever shaft and telescoping shoring column lever lock fasten piece, the 9. iron clamp piece that is locked, 10. telescoping shoring column bar, 11. balance pivot axle sleeves, 12. balance adjustment nuts; 13. balance indicator, 14. balance balance index dials, the hook of the 15. band edges of a knife, 16. scale pan bearing support and locking devices, 17. edge of a knife parallels, 18. balance weights, 19. hook sign indicating numbers; 20. dolly, 21 balances, lever pillar and base, 22. candlesticks, 23. lens and optical screen expansion pedestal, 24. lens, 25. optical screens; 26. slide rheostat, 27. integrated circuit junction blocks, 28. twin columns junction blocks, 29. triodes, diode junction block, 30. battery cases; 31. switch, 32. lamp sockets, 33. detachable tripods, 34. magnetic boots, 35. electromagnet secondary coils; 36 primary winding, 37. square frame coils, 38. square frame winding wiring sockets, 39. bearing holder (housing, cover)s, 40. collector ring commutator assemblies; 41. support, 42. rotating shafts, 43. brushes, 44. brush wiring guide pillars, 45. brush binding posts; 46. small magnetic needle, 47. non-centrosymmetry needles, 48. galvo coil, 49. pyrocondensations approach plastic insulating layer binding post assembly, and 50. pyrocondensations approach plastic insulating layer; 51. copper nut, the new-type terminal assembly that 52. terminals connect, 53 wiring metal tubes, the thread locking insertion portion of 54. elastic metallics, 55. connector receptacle; 56. adapter, 57 fixed value resistances, 58. potentiometers, 59. relays, 60. slide rheostat slide bars; 61. the slide rheostat fastening spring, 62. slide rheostat feather key contact chips, locating ring on the 63. detachable tripods, locating ring under the 64. detachable tripods, 65. detachable tripod supporting legs; Regulate lacing film, 67. springs, 68. weight beam pointers, 69. weight beam activity marks, 70. weight beam pull bars 66. lift ring and spring; 71. weight beam pull bar spacer, 72. both sides have the dynamometer scaleplate of chute, 73. bases have the part of chute or slide rail and magic tape, and 74. are fixed on the cohesive cloth of spectacle case inside surface, and 75. bases have the part of chute or slide rail installation components and parts.

Embodiment

In Fig. 1, packaging case lid (1) is done the base of balance strut and stand for experiment, has respectively with fixing balance strut, the scalable stand for experiment of screw on it and describes the equipotential line experiment preformed hole that electricity etc. satisfies various requirement of experiment is installed; The support bottom is balance, lever pillar (21); Telescope support bar (10) is inserted on the piece that is locked (8), balance balance index dial (14) and scale pan bearing support and the locking device (16), the top that are equipped with on it in order to the fixed weigher edge of a knife, lever shaft and telescoping shoring column bar, and the iron clamp piece (9) that is locked is arranged at cradling piece top; Transparent packaging case body (2) is made the tank container, object deformation sink-float tester (4), and submarine model (3) and liquid internal pressure all can be demonstrated therein.Balance weights (18), hook sign indicating number (19) can compactness be placed in the dolly (20), candlestick (22) lens (24), optical screen (25) and scalable bearing (23) thereof and tripod (33) is all dismantled and assembled stacks to dwindle storage space.

Fig. 2 inlays edge of a knife parallels (17) at the central authorities and the two ends of lever element crossbeam; Chute is arranged on the lever; Rider (7) is installed in its chute, and lever shaft bearing sleeve (11) is equipped with in lever central authorities position on the upper side, right-hand member install adjustment nut (12); There are lever scale and rider surveyors' staff in the front, and the crossbeam two ends are with hook (15) the suspension scale pan (5) of the band edge of a knife.Central authorities' edge of a knife parallels is placed on the edge of a knife of being fixed by the piece that is locked (8).

Fig. 3 is that its innovation part of solenoid is that four micro wiring terminals of end device or terminal convolution jack and iron core two ends flush with secondary coil skeleton both ends of the surface on the skeleton of the electromagnet secondary coil (35) in primary winding (36); Iron core central authorities screw in the handling screw rod can carry out the experiment of electromagnet principle, takes off screw rod and is combined in magnetic boots (34) with screw and goes up or be installed in the electromagnet that can do motor model, relay and electric bell on the base and use; Fig. 4 is that its innovation part of square frame coil is to be equipped with on bearing holder (housing, cover) (39) and at one end the bearing holder (housing, cover) in the two ends central authorities of square frame coil (37) collector ring and commutator assembly (40) all-in-one-piece lead gang socket (38) are housed, multinomial experiments such as this square frame coil cooperates that magnet can carry out that current field, electric current are stressed in magnetic field, electromagnetic induction, double current generator and motor.Fig. 5 is the Combination application example of electromagnet secondary coil and square frame coil; The square frame coil is put on rotating shaft (42) is bearing in electromagnet secondary coil (35) and magnetic boots (34) by support (41) central authorities; Brush (43) and brush guide pillar (44) are installed are formed motor model, carry out the experiment of AC and DC generator and AC and DC motor.

Fig. 6 places it in the characteristics that the self-sustaining balance arranged on the smooth horizontal plane and rotate flexibly in the central punching press spherical crown shape convexity of small magnetic needle (46), and the demonstration Distribution of Magnetic Field is very convenient; Galvanometer needle (47) is processed non-centrosymmetrical pointer shape small magnetic needle among Fig. 7, and shape is demonstrated current field or do galvanometer pointer effect obvious shown among the figure 47.

The micro wiring terminal assembly (49) of the thin plastic insulating layer of novel pyrocondensation is processed with heat-shrink tube (50) and copper embedding nut (51) among Fig. 8; The terminal assembly (52) that the new-type terminal of Fig. 9 is combined as a whole is a kind of circuit jointing of brand-new design; It is characterized in that the electricity components and parts connect the lead two ends and are connected with the micro-integrated connector of being made up of elasticity locking tinsel and wiring tube; Its structure is that wiring metal tube (53) front end that is connected with lead is fixed with the insertion portion that the self-locking function is arranged (54) the overcoat insulation course composition that elastic metal wire is processed through twice bending; Every lead two ends all are connected with this joint; The bull that can realize a node connects; Each new-type terminal be line trap be again connector socket, quite lead and binding post link together, so be called terminal convolution circuit connecting mode.The mode CC that wherein all can adopt terminal to combine like switch (31), lamp socket (32), diode, triode junction block components and parts such as (29) and integrated circuit (27), relay (59), thus operating efficiency improved, prevent that lead from losing.There are the electricity components and parts of binding post can use adapter (56) to be connected for ammeter, battery case (30) and other with circuit; Adapter is made up of the supporting metal cylinder of u shaped connector and aperture, and new-type terminal can insert realizes in the supporting metal cylinder in aperture that circuit connects; The junction block (28) that is equipped with some pairs of binding posts simultaneously can be changed different elements easily and carry out various Experiments of Electrical Circuits, reduces electricity components and parts base quantity.Among Fig. 8, Fig. 9 (73), (74), (75) are connected example through magic tape with the cohesive cloth of spectacle case inside surface for the components and parts base of band chute slide rail.

Figure 10 is miniature slide rheostat (a 26) structural representation; It is characterized in that device has fastening spring (61) to guarantee the good contact and the location of contact chip in slide bar (60) feather key contact chip (62); Thereby overcome the poor contact phenomenon that traditional slide rheostat causes owing to the contact chip distortion, the binding post of resistive conductor (49) is arranged on axial two ends handled easily.

Figure 11 is that (64) two locating rings all detachably stack under its three supporting legs (65) of detachable tripod (33) and last (63); Figure 12 is the weight beam of band activity mark; Have on the dynamometer flat board that chute (72) adorns in groove that slip mark (69) dynamometer spring (67) lifts sheet (66) number of turns through precession what can weight beam be calibrated; Pointer (68) tightly is enclosed within on the pull bar (70), and pull bar prevents that through spacer (71) the spring contact is dull and stereotyped.

Claims

1. portable scientific experiment box; It is characterized in that the weight beam of microminiaturized components and parts and the base of various innovative designs, new-type connection lead that electricity components and parts terminal combines and joint and the thin plastic insulating layer micro wiring terminal of the supporting pyrocondensation that is connected thereof and subsidiary aperture supporting adapter, lever element, square frame coil, miniature slide rheostat, galvanometer and needle, band activity mark, detachably stack the tripod collection and be contained in floorage and be not more than square the having in the transparent packaging case of lid of 25cm * 18cm; Packaging case places in the supporting spectacle case, and spectacle case can be put into school bag or lie on the school bag easy to carry.

2. a kind of portable scientific experiment box according to claim 1 is characterized in that supporting packaging case spectacle case inside surface is covered with cohesive cloth, and each face combines with slide fastener, and the fixedly brassboard of components and parts of generate plane conduct unzips.

3. a kind of portable scientific experiment box according to claim 1; The base that it is characterized in that components and parts is by having guide rail and guide groove two parts are formed; Its part that components and parts are not installed is fixed on spectacle case expansion inside surface with magic tape and is covered with on the brassboard of cohesive cloth; The part of components and parts is installed, gets into guide groove through guide rail and be fixed on the brassboard.

4. a kind of portable scientific experiment box according to claim 1; New-type connection lead and joint that the electricity components and parts adopt terminal to combine, the connection lead two ends that it is characterized in that components and parts are connected with the miniature new-type connector of being made up of locking elastic metallic yarn and wiring tube and reach with the supporting pyrocondensation that is connected of connector and approach the jack that is connected on the supporting adapter in plastic insulating layer micro wiring terminal and subsidiary aperture thereof and the components and parts base.

5. a kind of portable scientific experiment box according to claim 1 is characterized in that inlaying on the lever element steel knife-edge parallels and rider is installed and the crossbeam setting nut, with the hook suspension scale pan of the band edge of a knife.

6. a kind of portable scientific experiment box according to claim 1 is characterized in that device has fastening spring in the miniature slide rheostat feather key.

7. a kind of portable scientific experiment box according to claim 1 is characterized in that bearing holder (housing, cover) is equipped with in the centre at square frame magazine two ends, and on bearing holder (housing, cover) collector ring, collector ring and the connector socket of apparatus integration.

8. a kind of portable scientific experiment box according to claim 1; It is characterized in that transparent packaging case body is the tank container of experiment usefulness; Lid is balance and stand for experiment base; The binding post of telescope support bar, balance strut and Experiments of Electricity is installed respectively above that, and is satisfied the installation preformed hole of various requirement of experiment.

9. a kind of portable scientific experiment box according to claim 1 is characterized in that small magnetic needle central authorities towards spherical crown shape projection is arranged, and the galvanometer needle is processed non-centrosymmetrical pointer shape.

10. a kind of portable scientific experiment box according to claim 1 is characterized in that the weight beam both sides are provided with activity mark, and tripod detachably stacks.